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2.Discuss other ways to go green
Teaching procedures:
Step1:Lead-in
T: What can you think of when you see the colour green?
(students’ answers: nature, life, green trees, protect our environment)
【设计意图：通过谈论绿色带给人们的感觉，引出植树话题，过渡到漫画部分的植树话题】
Step2: Comic strip
Look and learn
T: What is in Hobo’s hand? What can we use it to do? What kind of trees is Eddie going to plant?
Listen and answer
What is Hobo going to do?
Will more trees be planted this year? Why?
What does Eddie like doing?
What will Eddie plant?
Read and act
【设计意图：通过看听漫画回答问题以及朗读和角色表演，帮助学生掌握漫画内容。并口头提问了植树的益处，拓展了学生的思维】
Step 3: Look and learn
Learn different kinds of pollution
Group discussion:
What causes different kinds of pollution?
【设计意图：使学生进一步了环境污染的具体名称及引起污染的原因，为后续的对话展开积累语言素材】
Step4: Presentation Part A
T: Pollution has become one of the biggest problems in the world. How can we help our earth go green?
The ways to reduce air pollution
T: How can we reduce air pollution?
Practice the sentence structure “we should … by doing” and “It is wise to …”
Practice in pairs
T: How can we save water?
Show the ways to save water
Practice in pairs